Canine Equipment Technika 1-Inch Webbing Martingale Dog Collar, Medium, Tan Ideal for the dog that loves to back out of collars Made of extra soft climbing grade tubular webbing that has not exposed edges Limited slip action to prevent over corrected and choking Same benefits as a traditional martingale chain collar but is lighter on your dog Size medium adjusts to fit a neck size of 14 to 18-inch